POWER DOOR LOCK CONTROL SYSTEM Double Lock Function does not Operate Properly

DESCRIPTION

All the doors except the luggage compartment door have the double lock function. This system is set and unset by the main body ECU. When the main body ECU sends a request signal to each door ECU to set or unset the double lock function, the double lock motor built into each door lock operates.

WIRING DIAGRAM

A001AWCE03

PROCEDURE


  1. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM


    1. Check that the doors can be locked and unlocked normally using the wireless operation.

      OK
      Doors can be locked and unlocked normally using wireless operation.

    NG

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM Click here

    OK

  2. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (DOUBLE DOOR LOCK MOTOR)


    1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the double door lock motor operates normally.

      Driver Door (Front door ECU LH*1) (Front door ECU RH*2)
      Tester Display Test Part Control Range Diagnostic Note
      Double Lock Unset Operate double lock motor UNSET or SET -

      Tech Tips

      *1: for LHD

      *2: for RHD

      OK
      Double door lock motor operates normally.

    NG

    INSPECT FRONT DOOR LOCK ASSEMBLY (DRIVER SIDE DOUBLE DOOR LOCK MOTOR) Click here

    OK

  3. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (DOUBLE DOOR LOCK MOTOR)


    1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the double door lock motor operates normally.

      Passenger Door (Front door ECU RH*1) (Front door ECU LH*2)
      Tester Display Test Part Control Range Diagnostic Note
      Double Lock Unset Operate double lock motor UNSET or SET -

      Tech Tips

      *1: for LHD

      *2: for RHD

      OK
      Double door lock motor operates normally.

    NG

    INSPECT FRONT DOOR LOCK ASSEMBLY (FRONT PASSENGER SIDE DOUBLE DOOR LOCK MOTOR) Click here

    OK

  4. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (DOUBLE DOOR LOCK MOTOR)


    1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the double door lock motor operates normally.

      Rear Left Door (Rear door ECU LH)
      Tester Display Test Part Control Range Diagnostic Note
      Double Lock Unset Operate double lock motor UNSET or SET -
      OK
      Double door lock motor operates normally.

    NG

    INSPECT REAR DOOR LOCK ASSEMBLY LH (DOUBLE DOOR LOCK MOTOR) Click here

    OK

  5. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (DOUBLE DOOR LOCK MOTOR)


    1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the double door lock motor operates normally.

      Rear Right Door (Rear door ECU RH)
      Tester Display Test Part Control Range Diagnostic Note
      Double Lock Unset Operate double lock motor UNSET or SET -
      OK
      Double door lock motor operates normally.

    OK

    REPLACE MAIN BODY ECU

    NG

    INSPECT REAR DOOR LOCK ASSEMBLY RH (DOUBLE DOOR LOCK MOTOR) Click here

  6. INSPECT FRONT DOOR LOCK ASSEMBLY (DRIVER SIDE DOUBLE DOOR LOCK MOTOR)


    1. for LHD:

      A001F52E02
      for LHD
      *1 Component without harness connected: (Front Door Lock LH)
      *2 Unlock
      *3 Lock

      1. Apply battery voltage to the door lock and check operation of the door lock motor.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal N15-4 (L)

        Battery negative (-) → Terminal N15-3 (UL)

        		 Lock

      2. Apply battery voltage to the door lock motor and check the operation of the double door lock motor.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal N15-2 (DL)

        Battery negative (-) → Terminal N15-1 (UNDL)

        		 Set

        Battery positive (+) → Terminal N15-1 (UNDL)

        Battery negative (-) → Terminal N15-2 (DL)

        		 Unset

      3. While the double locking system is set, check that the doors cannot be unlocked by operating the control cable.

    2. for RHD:

      A001CXSE02
      for RHD
      *1 Component without harness connected: (Front Door Lock RH)
      *2 Unlock
      *3 Lock

      1. Apply battery voltage to the door lock and check operation of the door lock motor.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal N8-2 (L)

        Battery negative (-) → Terminal N8-1 (UL)

        		 Lock

      2. Apply battery voltage to the door lock motor and check the operation of the double door lock motor.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal N8-4 (DL)

        Battery negative (-) → Terminal N8-3 (UNDL)

        		 Set

        Battery positive (+) → Terminal N8-3 (UNDL)

        Battery negative (-) → Terminal N8-4 (DL)

        		 Unset

      3. While the double locking system is set, check that the doors cannot be unlocked by operating the control cable.


    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY (for Driver Side) Click here

    OK

  7. READ VALUE USING INTELLIGENT TESTER (DOUBLE DOOR LOCK POSITION SWITCH)


    1. Use the Data List to check if the double door lock position switch is functioning properly.

      Driver Door (Front door ECU LH*1) (Front door ECU RH*2)
      Tester Display Measurement Item/Display Normal Condition Diagnostic Note
      Double Lock Position SW Driver side double door lock position switch signal / ON or OFF

      ON: Driver side double door lock is unset

      OFF: Driver side double door lock is set

      		 -

      Tech Tips

      *1: for LHD

      *2: for RHD

      OK
      ON (driver side double door lock is unset) appears on screen.

    OK

    REPLACE FRONT DOOR ECU (for Driver Side) Click here

    NG

  8. INSPECT FRONT DOOR LOCK ASSEMBLY (DRIVER SIDE DOUBLE DOOR LOCK POSITION SWITCH)


    1. for LHD:

      A001BBGE02
      for LHD
      *1 Component without harness connected: (Front Door Lock LH)
      *2 Unlock
      *3 Lock

      1. Measure the resistance according to the value(s) in the table below.

        Standard resistance
        Tester Connection Switch Condition Specified Condition
        N15-6 (DLSR) - N15-5 (E) Set Below 1 Ω
        N15-6 (DLSR) - N15-5 (E) Unset 10 kΩ or higher

    2. for RHD:

      A001D4AE02
      for RHD
      *1 Component without harness connected: (Front Door Lock RH)
      *2 Unlock
      *3 Lock

      1. Measure the resistance according to the value(s) in the table below.

        Standard resistance
        Tester Connection Switch Condition Specified Condition
        N8-9 (DLSR) - N8-10 (E) Set Below 1 Ω
        N8-9 (DLSR) - N8-10 (E) Unset 10 kΩ or higher

    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY (for Driver Side) Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK - FRONT DOOR ECU)

    A001AYBE02

    1. for LHD:


      1. Disconnect the N9 ECU connector.

      2. Disconnect the N15 door lock connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard resistance
        Tester Connection Condition Specified Condition
        N9-3 (AI+) - N15-2 (DL) Always Below 1 Ω
        N9-4 (AI-) - N15-1 (UNDL) Always Below 1 Ω
        N9-20 (DBSL) - N15-6 (DLSR) Always Below 1 Ω
        N9-21 (DBE) - N15-5 (E) Always Below 1 Ω
        N9-3 (AI+) - Body ground Always 10 kΩ or higher
        N9-4 (AI-) - Body ground Always 10 kΩ or higher
        N9-20 (DBSL) - Body ground Always 10 kΩ or higher
        N9-21 (DBE) - Body ground Always 10 kΩ or higher
      A001BNPE02

    2. for RHD:


      1. Disconnect the N2 ECU connector.

      2. Disconnect the N8 door lock connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard resistance
        Tester Connection Condition Specified Condition
        N2-3 (AI+) - N8-4 (DL) Always Below 1 Ω
        N2-4 (AI-) - N8-3 (UNDL) Always Below 1 Ω
        N2-20 (DBSL) - N8-9 (DLSR) Always Below 1 Ω
        N2-21 (DBE) - N8-10 (E) Always Below 1 Ω
        N2-5 (AI+) - Body ground Always 10 kΩ or higher
        N2-6 (AI-) - Body ground Always 10 kΩ or higher
        N2-3 (DBSL) - Body ground Always 10 kΩ or higher
        N2-4 (DBE) - Body ground Always 10 kΩ or higher

    OK

    REPLACE FRONT DOOR ECU (for Driver Side) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. INSPECT FRONT DOOR LOCK ASSEMBLY (FRONT PASSENGER SIDE DOUBLE DOOR LOCK MOTOR)


    1. for LHD:

      A0019NWE02
      for LHD
      *1 Component without harness connected: (Front Door Lock RH)
      *2 Unlock
      *3 Lock

      1. Apply battery voltage to the door lock and check operation of the door lock motor.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal N8-2 (L)

        Battery negative (-) → Terminal N8-1 (UL)

        		 Lock

      2. Apply battery voltage to the door lock motor and check the operation of the double door lock motor.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal N8-4 (DL)

        Battery negative (-) → Terminal N8-3 (UNDL)

        		 Set

        Battery positive (+) → Terminal N8-3 (UNDL)

        Battery negative (-) → Terminal N8-4 (DL)

        		 Unset

      3. While the double locking system is set, check that the doors cannot be unlocked by operating the control cable.

    2. for RHD:

      A001D16E02
      for RHD
      *1 Component without harness connected: (Front Door Lock LH)
      *2 Unlock
      *3 Lock

      1. Apply battery voltage to the door lock and check operation of the door lock motor.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal N15-4 (L)

        Battery negative (-) → Terminal N15-3 (UL)

        		 Lock

      2. Apply battery voltage to the door lock motor and check the operation of the double door lock motor.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal N15-2 (DL)

        Battery negative (-) → Terminal N15-1 (UNDL)

        		 Set

        Battery positive (+) → Terminal N15-1 (UNDL)

        Battery negative (-) → Terminal N15-2 (DL)

        		 Unset

      3. While the double locking system is set, check that the doors cannot be unlocked by operating the control cable.


    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY (for Front Passenger Side) Click here

    OK

  11. READ VALUE USING INTELLIGENT TESTER (DOUBLE DOOR LOCK POSITION SWITCH)


    1. Use the Data List to check if the double door lock position switch is functioning properly.

      Passenger Door (Front door ECU RH*1) (Front door ECU LH*2)
      Tester Display Measurement Item/Display (Range) Normal Condition Diagnostic Note
      Double Lock Position SW Front passenger side double door lock position switch signal/ON or OFF

      ON: Front passenger side double door lock is unset

      OFF: Front passenger side double door lock is set

      		 -

      Tech Tips

      *1: for LHD

      *2: for RHD

      OK
      ON (passenger side double door lock is unset) appears on screen.

    OK

    REPLACE FRONT DOOR ECU (for Front Passenger Side) Click here

    NG

  12. INSPECT FRONT DOOR LOCK ASSEMBLY (FRONT PASSENGER SIDE DOUBLE DOOR LOCK POSITION SWITCH)


    1. for LHD:

      A001ESHE02
      for LHD
      *1 Component without harness connected: (Front Door Lock RH)
      *2 Unlock
      *3 Lock

      1. Measure the resistance according to the value(s) in the table below.

        Standard resistance
        Tester Connection Switch Condition Specified Condition
        N15-6 (DLSR) - N15-5 (E) Set Below 1 Ω
        N15-6 (DLSR) - N15-5 (E) Unset 10 kΩ or higher

    2. for RHD:

      A001BVOE02
      for RHD
      *1 Component without harness connected: (Front Door Lock LH)
      *2 Unlock
      *3 Lock

      1. Measure the resistance according to the value(s) in the table below.

        Standard resistance
        Tester Connection Switch Condition Specified Condition
        N15-6 (DLSR) - N15-5 (E) Set Below 1 Ω
        N15-6 (DLSR) - N15-5 (E) Unset 10 kΩ or higher

    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY (for Front Passenger Side) Click here

    OK

  13. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK - FRONT DOOR ECU)

    A001C8DE02

    1. for LHD:


      1. Disconnect the N2 ECU connector.

      2. Disconnect the N8 door lock connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard resistance
        Tester Connection Condition Specified Condition
        N2-3 (AI+) - N8-4 (DL) Always Below 1 Ω
        N2-4 (AI-) - N8-3 (UNDL) Always Below 1 Ω
        N2-20 (DBSL) - N8-9 (DLSR) Always Below 1 Ω
        N2-21 (DBE) - N8-10 (E) Always Below 1 Ω
        N2-5 (AI+) - Body ground Always 10 kΩ or higher
        N2-6 (AI-) - Body ground Always 10 kΩ or higher
        N2-3 (DBSL) - Body ground Always 10 kΩ or higher
        N2-4 (DBE) - Body ground Always 10 kΩ or higher
      A001955E02

    2. for RHD:


      1. Disconnect the N9 ECU connector.

      2. Disconnect the N15 door lock connector.

      3. Measure the resistance according to the value(s) in the table below.

        Standard resistance
        Tester Connection Condition Specified Condition
        N9-3 (AI+) - N15-2 (DL) Always Below 1 Ω
        N9-4 (AI-) - N15-1 (UNDL) Always Below 1 Ω
        N9-20 (DBSL) - N15-6 (DLSR) Always Below 1 Ω
        N9-21 (DBE) - N15-5 (E) Always Below 1 Ω
        N9-3 (AI+) - Body ground Always 10 kΩ or higher
        N9-4 (AI-) - Body ground Always 10 kΩ or higher
        N9-20 (DBSL) - Body ground Always 10 kΩ or higher
        N9-21 (DBE) - Body ground Always 10 kΩ or higher

    OK

    REPLACE FRONT DOOR ECU (for Front Passenger Side) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  14. INSPECT REAR DOOR LOCK ASSEMBLY LH (DOUBLE DOOR LOCK MOTOR)

    A001928E02
    *1 Component without harness connected: (Rear Door Lock LH)
    *2 Lock
    *3 Unlock

    1. Check operation of the double lock motor.


      1. Apply battery voltage to the door lock and set the door lock motor to the lock position.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal O22-2 (L)

        Battery negative (-) → Terminal O22-1 (UL)

        		 Lock

      2. Apply battery voltage to the door lock motor and check the operation of the double door lock motor.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal O22-4 (DL)

        Battery negative (-) → Terminal O22-3 (UNDL)

        		 Set

        Battery positive (+) → Terminal O22-3 (UNDL)

        Battery negative (-) → Terminal O22-4 (DL)

        		 Unset

      3. While the double locking system is set, check that the doors cannot be unlocked by operating the control cable.


    NG

    REPLACE REAR DOOR LOCK ASSEMBLY LH Click here

    OK

  15. READ VALUE USING INTELLIGENT TESTER (DOUBLE DOOR LOCK POSITION SWITCH)


    1. Use the Data List to check if the double door lock position switch is functioning properly.

      Rear Left Door (Rear door ECU LH)
      Tester Display Measurement Item/Display (Range) Normal Condition Diagnostic Note
      Double Lock Position SW Rear LH side double door lock position switch signal / ON or OFF

      ON: Rear LH side double door lock is unset

      OFF: Rear LH side double door lock is set

      		 -
      OK
      ON (rear LH side double door lock is unset) appears on screen.

    OK

    REPLACE REAR DOOR ECU LH Click here

    NG

  16. INSPECT REAR DOOR LOCK ASSEMBLY LH (DOUBLE DOOR LOCK POSITION SWITCH)

    A001F53E02
    *1 Component without harness connected: (Rear Door Lock LH)
    *2 Lock
    *3 Unlock

    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      O22-9 (DLSR) - O22-10 (E) Set Below 1 Ω
      O22-9 (DLSR) - O22-10 (E) Unset 10 kΩ or higher

    NG

    REPLACE REAR DOOR LOCK ASSEMBLY LH Click here

    OK

  17. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK LH - REAR DOOR ECU LH)

    A001ET2E02

    1. Disconnect the O13 ECU connector.

    2. Disconnect the O22 door lock connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Condition Specified Condition
      O13-10 (AI+) - O22-4 (DL) Always Below 1 Ω
      O13-11 (AI-) - O22-3 (UNDL) Always Below 1 Ω
      O13-18 (DBLS) - O22-9 (DLSR) Always Below 1 Ω
      O13-19 (DBEI) - O22-10 (E) Always Below 1 Ω
      O13-10 (AI+) - Body ground Always 10 kΩ or higher
      O13-11 (AI-) - Body ground Always 10 kΩ or higher
      O13-18 (DBLS) - Body ground Always 10 kΩ or higher
      O13-19 (DBEI) - Body ground Always 10 kΩ or higher

    OK

    REPLACE REAR DOOR ECU LH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  18. INSPECT REAR DOOR LOCK ASSEMBLY RH (DOUBLE DOOR LOCK MOTOR)

    A001DRHE02
    *1 Component without harness connected: (Rear Door Lock RH)
    *2 Unlock
    *3 Lock

    1. Check operation of the double lock motor.


      1. Apply battery voltage to the door lock and set the door lock motor to the lock position.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal O11-4 (L)

        Battery negative (-) → Terminal O11-3 (UL)

        		 Lock

      2. Apply battery voltage to the door lock motor and check the operation of the double door lock motor.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal O11-2 (DL)

        Battery negative (-) → Terminal O11-1 (UNDL)

        		 Set

        Battery positive (+) → Terminal O11-1 (UNDL)

        Battery negative (-) → Terminal O11-2 (DL)

        		 Unset

      3. While the double locking system is set, check that the doors cannot be unlocked by operating the control cable.


    NG

    REPLACE REAR DOOR LOCK ASSEMBLY RH Click here

    OK

  19. READ VALUE USING INTELLIGENT TESTER (DOUBLE DOOR LOCK POSITION SWITCH)


    1. Use the Data List to check if the double door lock position switch is functioning properly.

      Rear Right Door (Rear door ECU RH)
      Tester Display Measurement Item/Display (Range) Normal Condition Diagnostic Note
      Double Lock Position SW Rear RH side double door lock position switch signal/ON or OFF

      ON: Rear RH side double door lock is unset

      OFF: Rear RH side double door lock is set

      		 -
      OK
      ON (rear RH side double door lock is unset) appears on screen.

    OK

    REPLACE REAR DOOR ECU RH Click here

    NG

  20. INSPECT REAR DOOR LOCK ASSEMBLY RH (DOUBLE DOOR LOCK POSITION SWITCH)

    A001C94E02
    *1 Component without harness connected: (Rear Door Lock RH)
    *2 Unlock
    *3 Lock

    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      O11-5 (DLSR) - O11-6 (E) Set Below 1 Ω
      O11-5 (DLSR) - O11-6 (E) Unset 10 kΩ or higher

    NG

    REPLACE REAR DOOR LOCK ASSEMBLY RH Click here

    OK

  21. CHECK WIRE HARNESS (REAR DOOR LOCK RH - REAR DOOR ECU RH)

    A001D0SE02

    1. Disconnect the O4 ECU connector.

    2. Disconnect the O11 door lock connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Condition Specified Condition
      O4-10 (AI+) - O11-2 (DL) Always Below 1 Ω
      O4-11 (AI-) - O11-1 (UNDL) Always Below 1 Ω
      O4-18 (DBLS) - O11-5 (DLSR) Always Below 1 Ω
      O4-19 (DBEI) - O11-6 (E) Always Below 1 Ω
      O4-10 (AI+) - Body ground Always 10 kΩ or higher
      O4-11 (AI-) - Body ground Always 10 kΩ or higher
      O4-18 (DBSLI - Body ground Always 10 kΩ or higher
      O4-19 (DBEI) - Body ground Always 10 kΩ or higher

    OK

    REPLACE REAR DOOR ECU RH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR